Bottle cap



0. KAM'PFE. BOTTLE CAP.

APPLICATION FILED JULY 31,1920.

I 1,423,431, Patented July 18,1922.

S E 'ATES i OTTO KAMPFE, OF BELLMORE, NEVI YORK; ASSIGNOR 0F ONE-HALF TO HENRY O.

WALKER, OF NEW YORK, N. Y.

Bor'rLu our.

Application filed July 31,

T 0 all whom it may concern:

.Beit known that I, OTTO KAMPFE, a citi- Zen of the United States, residing at Bellmore, in the county of Nassau and State of New York, have invented an Improvement in Bottle Caps. of which the following is a specification.

This invention relates to a bottle cap and more particularly to that type of bottle cap, shown and described in my copending application, Serial No. 368,877, filed March 26, 1920, in which the parts comprising the bottle cap are made entirely of metal and are caused to inter-engage with one another and'to engage with the'mouth of a bottle in the operation of applying the cap to the bottle to seal the same. The bottle cap made in accordance with the present invention preferably comprises a retainer member adapted to engage the neck of a bottle and a closure member adapted to engage the mouth of a bottle to seal the same and preferably made of a non-corrosive material so that irrespective of the contents of the bot tle there can be no chemical action between the cap; or any part thereof and the contents of the bottle to contaminate the contents and to destroy the cap and the seal by which the cap closes the bottle. The parts of the cap made in accordance with this invention, like those described in the appli cation aforesaid are so constructed that it is also possible to employ therewith a label for advertising purposes as well, if desired, to act as an auxiliary seal or indicating seal to make it possible to determine by inspection whether the bottle as originally closed and sealed by the improved cap has been,

opened and any of the original contents removed therefrom or other materialsubstituted for the original contents of the bottle, and the bottle can made in accordance with this invention will be hereinafter moreparaccompanying drawings.

In the drawing: Fig. 1 is a plan view of the closure memticularly described in conjunction with-the ber forming a part of the bottle cap made in accordance with my presentinvention.

Fig. 21s a plan of the closure member. F g. 3 1s an elevation and partial sec- Specification of Letters Patent.

Patented July 1%. 1922.

1920. Serial No. 400,473.

tion showing the neck of the bottle with my improved cap applied thereto.

Fig. 4- is an enlarged transversecross section illustrating the use of the label employed in conjunction with the improved bottle cap structure.

Fig. 5 is a plan ofa label which maybe employed in conjunction with the bottle cap,

and

Fig. 6 is an enlarged plan view of the closure member, after the same has been shaped in the bottling operation.

Referring to the drawing. it will be seen that in carrying out this invention the bottle cap made in accordance therewith com- 10 of the retainer member also includes the interior flange 13 which preferably extends downwardly or in the same direction as the flange 11 and its edge is provided with series of notches 14' providing a corresponding number of teeth 15 therein.

Associated with the retainer member, I employ a closure member. As illustrated in the drawing there is preferably a disk indicated at 16 and having a peripheral flange 17 made of any non-corrosive metal or other similar material. f

In the use of the improved bottle cap the closure member with the peripheral flange is inserted in the retainer'member andthe parts are so connected that when so inserted there is sufiicient frictional contact between the parts to maintain thesame in this associated relationship for the bottle capping at l9 while the rib adjacent the mouth oi the bottle is indicated at 20. With these parts so associated the bottle capping apparatus forces the parts together and the same against the neck of the bottle as clearly indicated in Fig. 3 so thatthe external flange of the retainer member engages the rib 20 on the neck of the bottle and the teeth 15 and a portion of the internal flange 13 are depressed against the adjacent surface of the closure member to force the same inwardly into close contact with the mouth of the bottle, while the peripheral flange l? of the closure member is turned over beneath the body portion of the retainer member as clearly indicated in Figs. 3 and 4- not only to unite the parts of the cap in, a substantially inseparable relationship, but also to complete the capping operation by complet ing the sealing of the bottle by the closure member.

It is also to be observed that in this hot tle capping operation the flange 1'? of the closure member first coming into contact with the inner surface of the circular poi tion of the retainer member and doing so at substantially the same time that the teeth 15 in the periphery of the inturned'flange of the retainer member contact with the closure member and acts as a cushion to prevent any undue pressure being brought to bear or to be localized at the mouthof the bottle and at the same time permitting the capping tool to force the central portion of the closure member into the mouthof the bottle by, permitting portions of the outer parts of the closure member to slide inwardly along the surface of the mouth of the bottle before the flange becomes completely turned over, as hereinbefore described and shown in the drawing, to assist in the sealing of the bottle by the parts of the cap.

Also as shown in the drawing, 1 may ems ploy a label for advertising or other pur poses, this label being indicated at 21 and having a central portion QFZwhichis prefei ably circular and adapted to be fitted between the retainer and closure members of p the cap before the same are permanently unitec in order that the upper portion of the face may be visible through the opening in the retainer member and may bear a suitable advertisement which is thus readily discernible. This label may be merely disk fitting between the parts of the bottle cap, or as indicated in Fig. 5 may have oppositely disposed ends or extensions 23, 24 adapted to extend down along side of and be secured to the neck of the bottle. This label, as will be understood and as hereinbefore intimated may also serve the purpose of an indicator to show whether the seal of the bottle cap has been broken. This may be accomplished by providing the label on its inner surface with one or more threads or strings indicated same to reach below the edgeof the corrugated fiange of the retainer member so that the cap as originally placed on the mouth "of the bottle cannot be removed without destroying these threads or strings. Of course the extent to which the ends of the label are carried or the length of-the indicator strings or cord are dependent upon the circumstances and conditions with which the same are employed, the label. if necessary extending all the way to the bottom of the bottle, and for the strings or threads, suitable straps may be employed, of such a nature that they may be used in removing the cap from the bottle.

I claim as my invention:

1.. A bottle cap comprising an annular retainer member having an external flange adapted to engage the neck of a bottle and an inwardly extending internal flange, and a closure member having a peripheral flange,

the said closure member and its peripheral neck of the bottle to effectually seal the same. v 2. A bottle cap comprising an annular retamer member having an external flange adapted to engage the neck of a bottle and an inwardly extending flange, in the edge of i which there are spaced teeth, and a closure member having a peripheral flange adapted in the capping operation to be secured to the retainer member by having its peripheral flange overturned within the same and to be engaged, by the teeth at the edge of the inwardly extending flange of the retainer member and depressed thereby to engage the mouth of a bottle to seal the same.

,, 8. A bottle cap comprising an annular retainer member having an external flange adapted to engage the neck of a bottle, a closure member adapted to be connected to the retainer member in the sealing operation, a label intermediate of the closure member and the retainer member so that in the capping operation the label is main tained between the retainer and closure members and the closure member is depressed by the retainer member to engage the mouth of a bottle toseal the same, and means associated with the label and extend ing beyond the external flange of the retainer member to indicate whether the cap as originally applied to the bottlehas been removed and the original seal broken.

4. A bottlecap comprising anannular retainer member havingan external flange adapted to engage the neck of a bottle, and an inwardly internal flange, and a noncorrosive metallic closure member having a peripheral flange, the said closure memin the sealflange of the retainer member the internal flange of the retainer member causing a por- 10 tion of the closure member to be forced into and directly against the neck and mouth of the bottle to seal the same.

Signed by me this 20th day of July, 1920.

OTTO KAMPFE. 

